Automatic dish-washer.



No. 880,637. PATENTBD MAR. 3, 1908.

JI A. DE VITO.

AUTOMATIC DISH WASHER. APPLICATION FILED MAY 6, 1907.

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x [five r2133 I John H. Del 5%;

PATENTED MAR. 3, 1908.

J. A. DE VITO. AUTOMATIC DISH WASHER.

APPLICATION FILED MAY 6, 1907..

2 SHEETS-SHEET 2.

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the lower portion of the device.

JOHN A. DE VITO, OF BOSTON, MASSACHUSETTS AUTOMATIC DISH-WASHER;

No. sso,e37.

To all whom 'it may concern:

Be it known that 1, JOHN A. DE Vrro, a

citizen of the United States, and a resident of' the .city of Boston, in the county of Sufiolk and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Automatic Dish-Washers, of which the following is a full, clear, and exact descri .tion.

T e object of this invention is the construction of a device by means of which dishes may be automatically washed by means of water from the customary hot and cold water faucets; the hot water serving to soften and disolve the dirt, and the cold Water performing the mechanical work of agitating the hot water,

To this end I rov'id the dish receiving compartment with a vertical rotary agitator turned by means of a 'jetrwheel located beneath the com artment and actuated by the water receiver from the cold water faucet; at the same time hot water being admitted to the compartment from the hot water faucet.

Referring to the drawings forming part'of this specification, Figure 1 is a perspective view of a dish washer made in accordance with my invention. Fig. 2.is a plan view of the same, with parts thereof broken away. Fig. 3 is a vertical. section, nearly full size, of

ters of a larger size to be placed therein than would be the case were the compartment circular. Beneath said compartment is a flange or base 2 circular in plan, within which islocated a jet-wheel 4 fixed upon a vertical shaft :3 rising centrally within said compartment. This wheel, and hence its shaft, is rotated by a. jet of water delivered through the nozzle 10, and received from the cold water faucet 125 through a suitable length of rubber hose 1]. llolos 35 in the base 2 permit of the es cape of the water from the wheel after having done its work. Fixed upon said shaft are several vanes or blades 15, 15, each located in planes making angles of substantially forty live degrees with the shaft, but fixed at Specification of Letters Patent.

Application filed May 6. 1907- Srial No. 372-164.

Fig. 4 is a Fig. 5 is an edge view of one of the,

Patented March 3, 1908.

right angles with each other upon opposite sides of the shaft as shown in Fig. 3; These blades'or vanes are each approximately semicircular, when sufficiently flattened to cause each to appear semi-circular when viewed three effects upon the water are produced by' the angles and also the flatness .of the blades. Were the blades more nearly horizontal, they would act to raise the water more than to throw it outward; but being half way between horizontal and vertical, they act almost equally toelevate the water and force it outward. Hence, the plates and platters having been laid against the sides of the compartment, and the smaller spaces between the same and the netting guard 20, which is fixed about the agitator, filled with the smaller dishes, the hot water is admitted to the compartment, and the cold water permitted to impinge against the jet .wheel. One or two pieces of soap are dropped into the water and permitted to sink to the bottom, and provide all the grease-dissolving element needed. The agitator will now cause a central ebullition up and along the surface of the waterand thence downward between the dishes and the sides of the compartmcnt, and between the dishes themselves, to the bottom. Here it flows toward the center to take the place of the upward curbeing provided for its easier turning, and the v hot water may, from the very beginning, be

waterwithin the com artment allowed to drain out. t Then, if esired, a quantity of boiling water can be poured over the dishes to' rinse them, and to permit them to be dried with the minimum of wipin This machine can be used wit good results Without the hot-water faucet, by

sim ly partially filling the compartment wit water from a tea kettle.

to the bottom of the compartment, as shown in Figs. 1 and 2. I also provide overflow openings 24 near the edge of the compart mentn By this arrangement,- all the clean water enters at the bottom, and all that overflows is the dirty water and scum. I

prefert'oj locate a piece of soap on the bottom of the compartment between this partition and the agitator in order that the incoming supplied with dirt and "grease dissolving means.

I prefer to support the u per end of the shaft 5 ma crossbar 25, W ich also serves the urpose of acentra'l handle or bail, and at tile same time holds the netting guard 20 strongly in position. At the bottom of the compartment is fixed a ring 21 to act as a. wall for the prevention of forksand the like from sliding along the compartment-bottom into accidentalengagement with the agitator blades. This is formed with a few small holes 22 to permit the water to draintherefrom, as shown in Fi 3. I usually form the jet wheel 4 by soldering a suitable number of I prefer, how ever, to take the hot water-from a faucet, as- 14, and for this purpose provide a conduit at one corner formed by a partition 23 "reaching from the top nearly but not quite I seeps:

L-shaped vanes 4 between two disks, as shown in Figs. 2, 3 and 5.

In Fi 1 the dishwasher is represented as stan in a sink, with a portion of the sink-front roken away to avoid interference which I desire Letters Patentis-as follows, to

rounding said wheel and supporting said compartment and having outlet openings, through the lower part thereof, and a flexible ube' joined to said nozzle and adapted to-b connected with a source of water under pressure; said water wheel being supported at ,a substantial distance above the bottom of said base; whereby the washer being stood on any suitable drained surface, as a sink, and said tube connected to the cold water faucet of such sink, said agitator blades wilLbe continually operated and the waste Water from saidwheel'not interfere with the latters ,action. I

In testimony that I claim the foregoing invention, I have hereunto set my hand this 3day of May, 1907. y

. 3 JOHN A. DE VITO.

Witnesses:

A. B. UPHAM, LOWELL M. MAXHAM. 

